| Axial .12RR Spec 1 Racing Engine with Green Cylinder Head. No Pull Starter. Designed for 1/10 scale touring car racing. FEATURES: Bi-metal sleeve aluminum alloy piston/chrome plating provides longer wear. ROAR legal 5.4mm slide valve carburetor with two needle adjustment, multi-position high speed needle fits most cars on the market Three-port cylinder sleeve Dual bushing connecting rod Rear exhaust INCLUDES: Axial .12RR Spec 1 Racing Engine with Green Cylinder Head, instruction sheet REQUIRES: Glow Plug: Turbo style, hot heat range Fuel: Race blend with 20% nitro content SPECS: Displacement: .12 cu in (2.09cc) Maximum RPM: 46,000 Bore: 13.76mm Stroke: 14.00mm Weight: 7.6oz (220g) Distance Between Mounting Holes Same Side: 11.08mm (0.436") Distance Between Mounting Holes Opposite Side: 32.15mm (1.265") Height Bottom of Mounting Tabs/Top of Cylinder Head: 75.89mm (2.98") Width of Mounting Tabs: 38.53mm (1.517") Distance from Back Plate to Front Bearing: 50.05mm (1.97") Distance from Center of Engine to Front Bearing: 25.02mm (0.985") Distance from Center of Engine to Back Plate: 25.02mm (0.985") COMMENTS: Some notes on slide valve and rotary carburetors: Rotary carbs offer a larger response in the middle of the power band. This works well for off-road applications when throttle response must be varied. Slide Valve carbs provide greater response at the beginning and end of the power band. This works well for on-road and racing applications for fast take-offs and high speed |